The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 days. Why not try and solve them ahead of time?
Ten-pin Bowling in Python in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 81st MaxElf999 356 250 11ms 3 Oct 2022 81st GolfingSuccess 🇬🇷 356 250 19ms 30 Mar 2023 83rd scpchicken 🇵🇼 353 252 44ms 12 Mar 2022 84th knutae 🇳🇴 346 257 17ms 18 Jul 2021 84th jared-hughes 346 257 10ms 25 Mar 2022 86th za3k 344 259 10ms 19 Nov 2022 87th amollberg 🇸🇪 342 260 11ms 20 Jan 2024 88th andrewjc2000 341 261 10ms 16 Oct 2025 89th marcin7Cd 340 262 11ms 4 Jan 2021 90th tobyLovick 337 264 11ms 29 Dec 2023 91st adamnielson42 🇺🇸 332 268 11ms 25 Apr 2023 92nd CaedenHarper 🇨🇦 330 270 31ms 13 Aug 2025 93rd abailey2020 🇺🇸 325 274 17ms 13 Dec 2020 94th AlephSquirrel 324 275 17ms 25 Dec 2022 95th TaserTheFox 🇺🇸 322 276 16ms 22 Aug 2023 96th AstroOrbis 319 279 11ms 25 Feb 2026 97th croc54 303 294 17ms 2 Feb 2025 98th Natanaelel 🇸🇪 300 297 16ms 25 Oct 2021 99th martinnorling 🇸🇪 297 300 11ms 1 Apr 2022 100th alemelis 294 303 16ms 29 Aug 2024 101st jtaxen 287 310 11ms 31 May 2024 102nd MarcMush 🇫🇷 283 315 10ms 31 Jul 2024 103rd madex 🇩🇪 278 320 10ms 29 Jul 2025 104th rak1507 🇬🇧 271 329 10ms 24 Oct 2021 105th galloj 🇨🇿 256 348 10ms 4 Sep 2022 106th xkacer 🇨🇿 255 349 17ms 30 Jan 2021 107th alangodfrey 254 350 11ms 1 Oct 2019 108th mathisfun271 253 352 11ms 8 Mar 2024 109th eiburns 235 379 11ms 27 Oct 2023 110th mokymok 🇺🇸 227 392 10ms 16 Nov 2021 111th KasperKivimaeki 🇫🇮 226 393 10ms 28 Nov 2025 112th msbranicky 226 394 17ms 31 Aug 2023 113th twocatsinatrenchcoat 224 398 10ms 15 Apr 2022 114th yzhs 🇩🇪 217 411 18ms 23 Jun 2023 115th tomh1012 211 421 17ms 9 Nov 2020 116th vonKrafft 207 429 16ms 26 Mar 2020 116th Openstreetmapler 207 429 17ms 25 Feb 2026 118th mosho-p 204 437 15ms 11 Oct 2022 119th CatsAreFluffy 195 456 11ms 8 Feb 2023 120th mbittner20 194 458 10ms 27 Jul 2024 121st muser-logiccpu 🇺🇦 189 471 10ms 24 Feb 2026 122nd AdamMorris377 189 472 19ms 29 Aug 2024 123rd estomagordo 🇳🇱 165 541 10ms 5 Aug 2019 124th dillon-duncando 117 758 18ms 4 Oct 2022 125th TheAristos 109 817 12ms 30 Oct 2019 126th Zhenyu-Bo 88 1,016 11ms 1 Aug 2025 127th Matter1024 🇮🇳 69 1,284 11ms 28 Feb 2026 128th jbrry 38 2,361 11ms 19 Sep 2022 First Prev 81–128 of 128
